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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2017 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*
* @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
*/
#ifndef NDN_TOOLS_NDNSEC_DSK_GEN_HPP
#define NDN_TOOLS_NDNSEC_DSK_GEN_HPP
#include "util.hpp"
int
ndnsec_dsk_gen(int argc, char** argv)
{
using namespace ndn;
using namespace ndn::security;
namespace po = boost::program_options;
std::string identityName;
char keyType = 'r';
po::options_description description("General Usage\n"
" ndnsec dsk-gen [-h] [-t keyType] identity\n"
"General options");
description.add_options()
("help,h", "produce help message")
("identity,i", po::value<std::string>(&identityName),
"identity name, for example, /ndn/ucla.edu/alice")
("type,t", po::value<char>(&keyType)->default_value('r'),
"optional, key type, r for RSA key (default), e for ECDSA key.")
// ("size,s", po::value<int>(&keySize)->default_value(2048),
// "optional, key size, 2048 (default)")
;
po::positional_options_description p;
p.add("identity", 1);
po::variables_map vm;
try {
po::store(po::command_line_parser(argc, argv).options(description).positional(p).run(), vm);
po::notify(vm);
}
catch (const std::exception& e) {
std::cerr << "ERROR: " << e.what() << std::endl;
std::cerr << description << std::endl;
return 1;
}
if (vm.count("help") != 0) {
std::cerr << description << std::endl;
return 0;
}
if (vm.count("identity") == 0) {
std::cerr << "identity must be specified" << std::endl;
std::cerr << description << std::endl;
return 1;
}
shared_ptr<v1::IdentityCertificate> kskCert;
Name signingCertName;
ndn::security::v1::KeyChain keyChain;
try {
Name defaultCertName = keyChain.getDefaultCertificateNameForIdentity(identityName);
bool isDefaultDsk = false;
std::string keyUsageTag = defaultCertName.get(-3).toUri().substr(0,4);
if (keyUsageTag == "ksk-")
isDefaultDsk = false;
else if (keyUsageTag == "dsk-")
isDefaultDsk = true;
else {
std::cerr << "ERROR: Unknown key usage tag: " << keyUsageTag << std::endl;
return 1;
}
if (isDefaultDsk) {
shared_ptr<v1::IdentityCertificate> dskCert = keyChain.getCertificate(defaultCertName);
if (static_cast<bool>(dskCert)) {
SignatureSha256WithRsa sha256sig(dskCert->getSignature());
Name keyLocatorName = sha256sig.getKeyLocator().getName();
Name kskName = v1::IdentityCertificate::certificateNameToPublicKeyName(keyLocatorName);
Name kskCertName = keyChain.getDefaultCertificateNameForKey(kskName);
signingCertName = kskCertName;
kskCert = keyChain.getCertificate(kskCertName);
}
else {
std::cerr << "ERROR: The default certificate is missing." << std::endl;
return 1;
}
}
else {
signingCertName = defaultCertName;
kskCert = keyChain.getCertificate(defaultCertName);
}
if (!static_cast<bool>(kskCert)) {
std::cerr << "ERROR: KSK certificate is missing." << std::endl;
return 1;
}
Name newKeyName;
switch (keyType) {
case 'r':
{
RsaKeyParams params;
newKeyName = keyChain.generateRsaKeyPair(Name(identityName), false, params.getKeySize());
if (0 == newKeyName.size()) {
std::cerr << "ERROR: Fail to generate RSA key!" << std::endl;
return 1;
}
break;
}
case 'e':
{
EcdsaKeyParams params;
newKeyName = keyChain.generateEcdsaKeyPair(Name(identityName), false, params.getKeySize());
if (0 == newKeyName.size()) {
std::cerr << "ERROR: Fail to generate ECDSA key!" << std::endl;
return 1;
}
break;
}
default:
std::cerr << "ERROR: Unrecongized key type" << "\n";
std::cerr << description << std::endl;
return 1;
}
Name certName = newKeyName.getPrefix(-1);
certName.append("KEY")
.append(newKeyName.get(-1))
.append("ID-CERT")
.appendVersion();
shared_ptr<v1::IdentityCertificate> certificate =
keyChain.prepareUnsignedIdentityCertificate(newKeyName,
Name(identityName),
kskCert->getNotBefore(),
kskCert->getNotAfter(),
kskCert->getSubjectDescriptionList());
if (static_cast<bool>(certificate))
certificate->encode();
else {
std::cerr << "ERROR: Cannot format the certificate of the requested dsk." << "\n";
return 1;
}
keyChain.sign(*certificate,
security::SigningInfo(security::SigningInfo::SIGNER_TYPE_CERT, signingCertName));
keyChain.addCertificateAsIdentityDefault(*certificate);
std::cerr << "OK: dsk certificate with name [" << certificate->getName() <<
"] has been successfully installed\n";
return 0;
}
catch (std::runtime_error& e) {
std::cerr << "ERROR: other runtime errors: " << e.what() << "\n";
return 1;
}
}
#endif // NDN_TOOLS_NDNSEC_DSK_GEN_HPP